Now the question is...is it worth it if I am not planning on holding on to the truck for much longer as I am moving overseas?

Am I going to recoup the price of the tear-out, rebuild, and reinstallation in the sale of the truck? About $2100 total? Does a S/C add that much value to a used Tacoma with 115K on the clock? Especially with the price of running 93 octane...